![]() ![]() To turn the whole thing back off, just use: defaults write killRunawayProcesses 0 You’ll probably want to make sure you’ve allowed App Tamer to display notifications in System Preferences > Notifications. When App Tamer kills a process, it will put up a notification to let you know. For full-fledged applications, use the app’s bundle identifier. You can add as many processes as you want here, separated by spaces. The fourth sets runawayProcessList to watch lsd and pkd.This is how long (in seconds) the process has to be above its limit before App Tamer kills it. The third sets runawayProcessTimeLimit to 20.You can set that to whatever CPU percentage you want. The second sets runawayProcessCPULimit to 50.The first command turns on the killRunawayProcesses feature.Here’s what’s going on with the commands: Paste in these commands, hitting the Return key after each one: defaults write killRunawayProcesses 1ĭefaults write runawayProcessCPULimit 50ĭefaults write runawayProcessTimeLimit 20ĭefaults write runawayProcessList "lsd pkd" To configure this, you have to use Terminal. App Tamer is already collecting the CPU statistics anyway. This feature is probably only useful to a few people, but because it isn’t something that’s easy to code up with an AppleScript or shell script, I figured I’d just add it. This certainly isn’t ideal, but works fine for system daemons that macOS will automatically relaunch whenever they’re needed. ![]() You specify which processes to watch, and if the CPU usage of any of them stays above a specified limit for a certain amount of time, App Tamer just kills the process. So I’ve added a “runaway process assassin” to App Tamer. And apparently, App Tamer’s process throttling can’t limit the CPU usage without effectively disabling whatever function those processes are supposed to be performing. Despite chasing around to try and find the culprit, they often can’t resolve the problem without completely reinstalling the system. An experimental feature for a very specific system problem:Īnd now for the geeky, experimental feature: It’s come to my attention that some people are living with bugs in macOS that can result in essential background processes (like lsd and pkd) suddenly consuming tons of CPU time and bringing their Mac to a standstill. You can find the full release notes and download links to App Tamer 2.6.2 on the App Tamer Release Page. Compounding this was a change in version 2.6.1 that resulted in the mouse cursor not turning into a little arrow when you hovered over the edges of the window, so you couldn’t tell it’s resizable.Īnother glitch, a result of changes that Apple made in Big Sur, could result in the names of processes being truncated in the process list. When newly installed, the size of App Tamer’s window was much smaller than it was supposed to be, making it hard to see the list of tamed processes. Version 2.6.2 of App Tamer is available, fixing a couple of user interface bugs that could trip up new users. ![]()
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